AceShowbiz -

Miley Cyrus and her ex-boyfriend Patrick Schwarzenegger seemingly don't have a very good relationship after splitting earlier this year. The former couple was said staying away from each other when they unintentionally showed up at the same party hosted by Bootsy Bellows-owner Markus Molinari.

According to a partygoer, Patrick and Miley were seen avoiding each other during the birthday party taking place at Blind Dragon in West Hollywood on Friday, May 29. "Patrick and Miley didn't interact. He didn't say a word to her," the source told Us Weekly before adding that the "Wrecking Ball" songstress spent most of the night having fun with her fellow singer Katy Perry.

Patrick and Miley called their relationship quits in April after five months of dating. The pair were hit with various rumors including fighting and cheating. Things got worse when the 21-year-old model was spotted getting cozy with a bikini-clad girl during spring break in Mexico.

Patrick denied the cheating rumors, though, saying that the girl was a girlfriend of one of his close friends. However, the incident reportedly became the prominent factor in his split from Miley. "The Mexico scandal did serious damage," a source said at that time.